Quick answers
- Which hospitals does Mark E. Leimbach work at?
- Medicare's official clinician data lists Mark E. Leimbach at 4 hospitals: Northside Hospital, Northside Hospital Cherokee, Northside Hospital Forsyth and Northside Hospital Gwinnett. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark E. Leimbach see patients?
- Medicare's clinician data lists 12 practice locations, including Atlanta, GA, Lawrenceville, GA and Cumming, GA. Call before your visit to confirm the address.
- What is Mark E. Leimbach's specialty?
- Medicare lists Interventional Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Mark E. Leimbach accept Medicare assignment?
- Yes. Medicare's clinician data says Mark E. Leimbach accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mark E. Leimbach?
- (404) 851-8000, as listed in official Medicare / NPI Registry data.
- What is Mark E. Leimbach's NPI number?
- 1104878404. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark E. Leimbach works
Medicare's Facility Affiliation Data lists Mark E. Leimbach at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northside HospitalAtlanta, GA · Acute Care Hospital · CCN 110161
- Northside Hospital CherokeeCanton, GA · Acute Care Hospital · CCN 110008
- Northside Hospital ForsythCumming, GA · Acute Care Hospital · CCN 110005
- Northside Hospital GwinnettLawrenceville, GA · Acute Care Hospital · CCN 110087
Practice locations
Addresses where Mark E. Leimbach is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 12; the Medicare profile lists all.
- 1000 Johnson Ferry Rd NEAtlanta, GA 30342 (404) 851‑8000
- 1000 Medical Ctr BlvdLawrenceville, GA 30046 (678) 312‑1000
- 1200 Northside Forsyth DrCumming, GA 30041 (770) 844‑3200
- 1255 Friendship Rd, Suite 210Braselton, GA 30517 (404) 962‑6000
- 1285 Upper Hembree RdRoswell, GA 30076 (770) 343‑8565
Group practices
Medicare enrollment lists Mark E. Leimbach as a member of this group (CMS data updated 2026-10-02).
- Northside Cardiovascular Professional Services, LLC173 clinicians in the group
Specialties
Other interventional cardiologists in Atlanta
Clinicians with the same Medicare primary specialty in Atlanta, GA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104878404 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians